Prime Minister Malcolm Turnbull is under fire after it has emerged that a second parliamentary job was created for Deputy Prime Minister Barnaby Joyce's girlfriend after the first role was lost following Resources Minister Matt Canavan's resignation.

The creation of the role in Mr Canavan's office was authorised by Prime Minister Malcolm Turnbull, who also supported Vikki Campion's shift to National Chief Whip Damian Drum's office.

The Labor party has called on the Prime Minster to explain the creation of the new role and publicly confirm that no public money was misused.

Ms Campion, 33, is reported to have undertaken the role of media adviser after Mr Canavan was forced out of office. ()Ms Campion's employment required a request for Mr Drum's staff allocation to be expanded from six to seven. (AAP) ()

"A lot of people in communities right around Australia would find that hard to cop," Labor MP Jim Chalmers told 9NEWS.

Ms Campion, 33, is reported to have undertaken the role of media adviser after Mr Canavan was forced out of office in the wake of the citizenship scandal – despite the role already being filled by another staff member.

Ms Campion's employment required a request for Mr Drum's staff allocation to be expanded from six to seven. That request required the prior approval of Mr Turnbull.

Mr Joyce is currently living with Ms Campion in Armidale, New South Wales. (AAP) ()

The Prime Minister declined to comment, but his office confirmed to 9NEWS that all staff appointments "were made in the usual way".

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The role furthermore was not advertised and other candidates were not interviewed as part of the selection process, the newspaper said.

The claims come just a day after it was alleged Resources Minister Matt Canavan specially created a job in his office for Ms Campion. Yesterday Mr Turnbull said he was "not aware" of any inappropriate expenditure of public funds.

Mr Canavan issued a statement saying Ms Campion was "suitably qualified" for the role for which she was hired.

Mr Joyce is currently living with Ms Campion in Armidale, New South Wales, following the breakdown of his marriage of 24 years last year. The pair are expecting a baby.

It has also emerged in recent days that the couple of living rent-free since December, courtesy of a wealthy businessman.

The Telegraph reports the pair's affair – initiated when Ms Campion worked as a media advisor to Mr Joyce – and the dysfunction it caused prompted then-chief of staff Diana Hallam to quit.